Our company has over 26 years experience in site work, excavation work, foundations, and concrete contracting specializing in streetscapes, intersections, and sidewalk improvements. Colonna holds an excellent reputation among clientele raging from private homeowners, town and city municipalities, and CT DOT projects. Over the years we have built a reputation based on quality and reliability, giving us the ability to provide you with decades of Commercial and Residential construction experience, as well as unparalleled Customer Service.